American Fibertek SM10p-PoE - Manual (Page 85)

‹ Max Age (6-40): The number of seconds a bridge waits without receiving
Spanning-tree Protocol configuration messages before attempting a
reconfiguration. Enter a value between 6 through 40
‹ Hello Time (1-10): The time that controls switch sends out the BPDU packet to
check RSTP current status. Enter a value between 1 through 10
‹ Forward Delay Time (4-30): The number of seconds a port waits before
changing from its Rapid Spanning Tree Protocol learning and listening STP
states to the forwarding state. Enter a value between 4 through 30
Note Follow the rule to configure the MAX Age, Hello Time, and Forward Delay
Time.
2 x (Forward Delay Time value – 1) > = Max Age value >= 2 x (Hello
Time value +1)
RSTP System Configuration interface
78